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Extension agent


Agricultural extension is the application of scientific research and new knowledge to agricultural practices through farmer education. The field of 'extension' now encompasses a wider range of communication and learning activities organized for rural people by educators from different disciplines, including agriculture, agricultural marketing, health, and business studies.

Extension practitioners can be found throughout the world, usually working for government agencies. They are represented by several professional organizations, networks and extension journals.

Agricultural extension agencies in developing countries receive large amounts of support from international development organizations such as the World Bank and the Food and Agriculture Organization of the United Nations.

Modern extension began in Dublin, Ireland in 1847 with Lord Clarendon's itinerant instructors during the great famine. It expanded in Germany in the 1850s, through the itinerant agricultural teachers Wanderlehrer and later in the USA via the cooperative extension system authorized by the Smith-Lever Act in 1914. The term was later adopted in the United States of America, while in Britain it was replaced with "advisory service" in the 20th century. A number of other terms are used in different parts of the world to describe the same or similar concept:

In the US, an extension agent is a university employee who develops and delivers educational programs to assist people in economic and community development, leadership, family issues, agriculture and environment. Another program area provided by extension agents is 4-H and youth activities. Many extension agents work for cooperative extension service programs at land-grant universities. They are sometimes referred to as county agents, or extension educators. Often confused with Extension agents, Extension specialists are subject matter experts usually employed as scientists and university professors in various departments in the land-grant university system. Subjects range from agriculture, life sciences, economics, engineering, food safety, pest management, veterinary medicine, and various other allied disciplines. These subject matter specialists work with agents (usually in a statewide or regional team environment) to support programs within the cooperative extension system.


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